大多数火山的爆发发生在板块边界。
此次爆发发生在122亿年以前。
在2007年酷热的夏天也发生过类似的藻类爆发，最后演变成国内的丑闻。
A similar outbreak in the torrid summer heat of 2007 became a national scandal.
即将发生的火山爆发可能要强制疏散100多万居民。
An impending eruption could force the evacuation of more than a million people.
然而，麻疹流行爆发一直在发生，甚至在多数人已经接种的一些国家发生。
However, measles outbreaks still happen, even in countries where most people have been vaccinated.
即将发生饥荒之时，严重的战乱爆发了。
Against a background of impending famine, heavy fighting took place.
下一次全球流感大爆发可能发生在2059年，也可能就在明年。
像在温嫩登这样的惨案很不幸在没有任何预兆的情况下爆发了，而且很可能其他地方也会发生。
Tragedies like the one in Winnenden can unfortunately strike without warning, and perhaps anywhere.
该山火爆发时，圣地亚哥仍然未能从该季节早前发生的大规模山火中恢复过来。
These blazes come as San Diego is still recovering from massive fires earlier this season.
一场激烈的冲突在发生事故的司机之间爆发了。
An acrimonious dispute broke out between the drivers who had the accident.
自冷战爆发以来，国际安全危机频频发生。
Since the beginning of the Cold War, international security crises have occurred frequently.
自冷战爆发以来，国际安全危机频频发生。
Since the beginning of the Cold War, international security crises have occurred frequently.
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